Home / 777,977.40-1,166,966.10-512,095.80

Finding the Fourth Proportional to 777,977.40, 1,166,966.10 and 512,095.80

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Solution

The fourth proportional to 777,977.40, 1,166,966.10 and 512,095.80 is: 768,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,977.40 : 1,166,966.10 = 512,095.80 : x
  2. Step 2: Convert to fraction form
    777,977.40/1,166,966.10 = 512,095.80/x
  3. Step 3: Cross multiply
    777,977.40x = 1,166,966.10 × 512,095.80
  4. Step 4: Simplify right side
    777,977.40x = 597,598,438,552.38
  5. Step 5: Solve for x
    x = 597,598,438,552.38/777,977.40
  6. Step 6: Final answer
    x = 768,143.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.